Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than
phan cau » phan dau, phan cac, phan tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((chieu tinh) or (hieu lang))) or (chiet tach)) - thanh trung cua nhung cong ban phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu tinh) OR (hieu lang))) OR (chiet tach)) - thanh trung cua nhung cong ban phan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu tinh) or (hieu lang))) or (chiet tach)) - thanh trung cua nhung cong ban phan cau*.